/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.wsinfra.wsr.impl;

import cgl.narada.wsinfra.schemas.soap.EnvelopeDocument;
import cgl.narada.wsinfra.schemas.wsr.PollRequestDocument;
import cgl.narada.wsinfra.schemas.wsr.RequestDocument;
import cgl.narada.wsinfra.schemas.wsr.ResponseDocument;
import cgl.narada.wsinfra.util.SoapMessageAlteration;
import cgl.narada.wsinfra.wsr.WsrElementAddition;

/** This is a class which facilitates the addition of WSR elements to a 
    SOAP enevelope.  

    @author Sima Patel
    $Date: 
    $Revision: 
*/

public class WsrElementAdditionImpl implements  WsrElementAddition {
    
    private SoapMessageAlteration soapMessageAlteration;
    private String moduleName = "WsrElementAddition: ";

    private static final WsrElementAddition instance = 
                                                   new WsrElementAdditionImpl();

    private WsrElementAdditionImpl() {
        soapMessageAlteration = SoapMessageAlteration.getInstance();
    }

    public static WsrElementAddition getInstance() {
        return instance;
    }

    /** Adds a Request Element to the specified envelope. This method 
    returns true if the operation succeded.*/
    public boolean addRequest(EnvelopeDocument envelopeDocument,
			      RequestDocument requestDocument) {
        if (envelopeDocument == null) {
            System.out.println(moduleName + 
                                        "Specified EnvelopeDocument is NULL!");
            return false;
        }
        if (requestDocument == null) {
            System.out.println(moduleName + 
                                         "Specified Request document is NULL!");
            return false;
        }
        soapMessageAlteration.addToSoapHeaderAsLastChild(envelopeDocument, 
                                                               requestDocument);
        return true;
    } 
    /** Adds a PollRequest Element to the specified enevelope. This
    method returns true if the operation succeded.*/ 
    public boolean addPollRequest(EnvelopeDocument envelopeDocument,
			          PollRequestDocument pollRequestDocument) {

        if (envelopeDocument == null) {
          System.out.println(moduleName +"Specified EnvelopeDocument is NULL!");
          return false;
        }
        if (pollRequestDocument == null) {
          System.out.println(moduleName + 
                                     "Specified PollRequest Document is NULL!");
          return false;
        }
        soapMessageAlteration.addToSoapHeaderAsLastChild(envelopeDocument, 
                                                         pollRequestDocument);
        return true;
    }
  
    /** Adds a Response Element to the specified envelope. This method returns
    true if the operation succeded.*/
    public boolean addResponse(EnvelopeDocument envelopeDocument,
		               ResponseDocument responseDocument) {
        if (envelopeDocument == null) {
            System.out.println(moduleName + 
                                        "Specified EnvelopeDocument is NULL!");
            return false;
        }
        if (responseDocument == null) {
            System.out.println(moduleName + 
                                        "Specified Response document is NULL!");
            return false;
        }
        soapMessageAlteration.addToSoapHeaderAsLastChild(envelopeDocument,
                                                              responseDocument);
        return true;
    }
}